Why is coping corners better than using a miter saw?
There are three primary benefits to coping corners instead of using a miter saw. First, coped corners always look good, it doesn’t matter if the corner is a perfect 90 degrees or not (very few are), the coped end fits like a glove, providing a much better finished look. Additionally, properly coped joints require much less caulk, since you’re not trying to hide bad, poorly fitting joints. Finally, as your trim dries and looses moisture, it is much less likely that the caulk will split at the inside corners, which is almost inevitable when inside corners are mitered.
